OK, I have a Mac Pro and 4 hard drives... 3 250's and 1 300. 1 250 is OSX boot, 1 250 is for OSX sorage... 1 250 is bootcamp, the 300 is for windows storage.... OK, EVERYTHING works perfectly when booting into Mac OS X... But.. When I want to boot into Windows, sometimes I get a distorted screen.. Now, my video card is a 2nd run XT1900... my first XT1900 was a 1st run model that fried, but it worked perfectly when booting into windows. With the replacement I got from apple, when I choose to restart into windows, 80% of the time when the black screen with "Windows XP" comes up it is distorted... I have to hold the power button to shut off the ssytem and then turn it on again. sometimes I have to do this 4 or 5 times before windows boots with no distortion. However, no matter WHAT.. it ALWAYS boots fine into OS-X. NOW... I have tried my stock nVidia 7300GT in the sytem and it boots BOTH operating systems with NO PROBLEMS whatsoever..... Has anyone else had an issue like this with their XT1900?? Should I bug Apple again for another replacement???? Is there something I can do at home to fix it?